Thermonatrite Mineral Data
General Thermonatrite Information
Chemical Formula:
Na2CO3•(H2O)
Composition:
Molecular Weight = 124.00 gm
Sodium 37.08 % Na 49.98 % Na2 O
Hydrogen 1.63 % H 14.53 % H2 O
Carbon 9.69 % C 35.49 % CO2
Oxygen 51.61 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Na2 (CO3 )•(H2 O)
Environment:
Dry lakes in arid regions.
IMA Status:
Valid Species (Pre-IMA) 1845
Locality:
Vesuvius, Campania, Italy. Link to MinDat.org Location Data.
Name Origin:
Named from the Greek for heat and natron, as the dehydration product from heating natron.
Name Pronunciation:
Thermonatrite + Pronunciation
Synonym:
ICSD 6293
PDF 8-448
Thermonatrite Image
Images:
Images:
Thermonatrite Crystallography
Axial Ratios:
a:b:c =2.0422:1:1.2324
Cell Dimensions:
a = 10.72, b = 5.249, c = 6.469, Z = 4; V = 364.01 Den(Calc)= 2.26
Crystal System:
Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: P ca21
X Ray Diffraction:
By Intensity(I/Io ): 2.768(1), 2.372(0.6), 2.753(0.55),
Physical Properties of Thermonatrite
Cleavage:
{100} Indistinct
Color:
Colorless, Grayish yellow, Grayish, Yellowish, White.
Density:
2.255
Diaphaneity:
Transparent to translucent
Fracture:
Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Hardness:
1 - Talc
Luster:
Vitreous - Dull
Streak:
white
Optical Properties of Thermonatrite
Gladstone-Dale:
CI meas = 0.022 (Excellent) - where the CI = (1-KPDmeas /KC ) CI calc = 0.025 (Excellent) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2139,KPDmeas = 0.2143,KC = 0.2192 Ncalc = 1.49 - 1.5
Optical Data:
Biaxial (-), a=1.42, b=1.506, g=1.524, bire=0.1040, 2V(Calc)=46, 2V(Meas)=48.
Calculated Properties of Thermonatrite
Electron Density:
Bulk Density (Electron Density)=2.25 gm/cc note: Specific Gravity of Thermonatrite =2.26 gm/cc.
Fermion Index:
Fermion Index = 0.0013156205 Boson Index = 0.9986843795
Photoelectric:
PEThermonatrite = 0.74 barns/electronU=PEThermonatrite x r Electron Density= 1.68 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Thermonatrite is Not Radioactive
Thermonatrite Classification
Dana Class:
15.01.01.01 (15) Hydrated Carbonates
(15.01) where A+ (XO3) � x(H2O)
(15.01.01) Dana Group
15.01.01.01 Thermonatrite Na2CO3•(H2O) P ca21 mm2
Strunz Class:
05.CB.05 05 - CARBONATES (NITRATES)
05.C - Carbonates without Additional Anions, with H2O
05.CB -With large cations (alkali and alkali-earth carbonates)
05.CB.05 Thermonatrite Na2CO3•(H2O) P ca21 mm2
Other Thermonatrite Information
References:
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
See Also:
Links to other databases for Thermonatrite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
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Print or Cut-and-Paste your Thermonatrite Specimen Label here :
Thermonatrite
Na2CO3•(H2O)
Dana No: 15.01.01.01 Strunz No: 05.CB.05
Locality:
Notes:
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